Addison s



(No Model.)

A. s. HOPKINS. SPINDLE AND BEARING THEREPOR.

`Patented une 6 mounted on one rail.

Y iUNiTED STATES .PATENT Ortner...

ADDISON S. 'HOPKINS, OF PASOOAG, RHODE ISLAND.

sPlNDLE AND BEARING THEREFOR. I

SPECIFICATION forming part of Letters Patent No. 259,016, dated June 6, 1882.

Application led January 23, 1882. (No model.)

To all whom t may concern:

Be it known that I, ADDISON S. HOPKINS, ofPascoag, in the county of Providence and State of Rhode Island, have invented a new and useful Improvement in Spindles; `and I hereby declare that the following is a'full, clear, and exact description of the same, reference being had to the accompanying drawings, forming part otl this specification.

'lhis invention h as reference to an improvement in spindles for spinning-machines; and it consists in the peculiar and novel construction ofthe bolster or bearing, as will be more y fully set forth hereinafter.

Figure l is a view in elevation ot' the spindle, showing also the bolster-case, the whirl, and the step, Fig. 2 is a similar vie\v,the bolster and bolster case or bearing being shown in section. Fig. 3 is a sectional detaihshowing a modification whereby the step and bolster case 0r bearing are adapted to be both The whirl in this figure is shown above the bolster. Fig. 4 is a view of the bolster; and Fig. 5 is an end view of the bolster, showing the bearing for the spindle eccentric with the bolsterthat is to say, the axis of the spindle-bearing is on one side ofthe axis of the bolster.

In the drawings, A is thc spindle; B, the whirl 5 C,the step; D, the bolster-case,which is secured in the bolster-rail, and lE the bolster.

The bolster-case D consists of the oil-well a and the enlargement b, in which the bolster E rests, and which on the outside forms the shoulder b', by which the bolster-case D rests on the bolster-rail.

The bolster E is composed of a metaltube, e, supported in the oilwell a by a projecting lia-nge, e', the cone-shaped lower side of which rests on a countersunk coneshaped shoulder in the enlargement of the bolster-case.

f isan annular groove made into the projection e' of the bolster. This groove is made on the same angle, or nearly so, as the bearing on the projection, so that oil will run down this groove through holes communicating with the spindle-bearing. This groove f is filled with wicking, and the upper surface of the projection is dished or grooved to receive the oil,l

holes being made to allow the oil to strain through the wicking in the groovef.

g is an opening in the bolster-tube e, connecting the spindle-bearing with the oil-well a.,

It will be seen by examining Fig. 5 that the bearing for the spindle A is not concentric with the bolster, but the center is a little on one'side ofthe center ofthe bolster. This eccentricity is shown by the broken lines indicating the centers, and although the centers are to be but very little one from the other, the effect on the ruiming of the spindle is considerable, and I will now describe this more fully.l

The projecting shoulder of the bolster tits into the enlargement of the bolster-case, but not so tightly but what the bolster may turn inthe case when the spindle binds in its bearing, the tube c being free to adjust itseltin the oil-well. The tapering cone-shaped bearing e facilitates such adjustment, which would not be the case with a square shoulderv or bearing. When now the bolstercase is adj usted to the spindle and a bobbin is placed on the spindle the trueaxis ofthe spindle and load may be slightly changed by the unequal distribution of the load, and the spindlebearing will have a tendency to bind in the bolster,the bolster will turn with the spindle part ot' a revolution, and the axis of the spindle will change sufficiently to bring the same into the true center ofthe load. The spindle will now turn free and the bolster will retain this position until a new bobbin will require a new adjustment, or until the yarn load will change the true center ot' rotation. By this arrangement a self-adjusting and yet fixed bearing is secured, and the spindle can be run at a high speed with great steadiness.

I am aware that holsters having an eccen trically`arran ged spindle-bearin g have l1ereto fore been used, and this I do not claim broadly.

Having thus described my invention, I claim as new and desire to secure by Letters Patentl. A spindle-bolster consisting of a tube having at its upper end a circular iiange arranged eccentrically with relation to the bore or spin die-bearing ot the tube, said ange being beveled upon its lower and provided upon its upper side with a circular groove, and having formedin its peripheral edge an inclined groove,

which communicates through openings with annular groove communicating throngh oilsaid circular groove and with the spindle-bem'- holes wt-h the spindle-bemin g of the bolster. lo

ing. In witness whereof I have hereunto set my f 2. The combination, substantially as before hand. 5 set forth, of the spindle, the bolster-case pro- ADDISON S. HOPKINS.

vided with an oil-Well, a, and an enlargement, Witnesses: b, having a beveled shoulder, and the bolster M. E. EMERSON,

having a flange, c', which is provided with an J. A. MILLER, Jr. 

